Apple told the publication that Matsuoka is working for Chief Operating Officer Jeff Williams, who oversees the company’s growing number of health initiatives. Those efforts include the HealthKit framework for developing apps, ResearchKit for using mobile devices in medical studies, and CareKit to help individuals improve their own medical care.

Yoky Matsuoka speaks onstage during Tina Brown's 7th Annual Women in the World Summit at David H. Koch Theater at Lincoln Center on April 8, 2016 in New York City. Photograph bu Jemal Countess 2016 — Getty Images

In 2007, Matsuoka won a MacArthur Foundation “genius” grant for her work in neurorobotics, using technology to help disabled people and stroke victims regain the use of their limbs. She was one of the co-founders of Google’s X lab and former head of technology at Nest. Google X is a semi-secret research and development facility created by Googleand operated as a subsidiary of Alphabet since October 2015.